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Organoclay selection for an oilfield fluid starts with the continuous phase and the job the fluid must perform. An oil-based drilling mud may need a controlled gel network for suspension and hole cleaning; a water-based mud calls for a different material and dispersion route. High-temperature wells, temporary spotting pills and intervention fluids add separate design constraints. This page helps drilling-fluid engineers and procurement teams identify the right application path before choosing a grade. Share your base fluid, fluid density, solids package, operating temperature and required test results with Camp-Shinning. The technical team can then recommend candidates for laboratory screening and provide current product documents.
Mud engineers, oilfield chemical formulators and procurement teams comparing fluid systems. It is a navigation overview, not a universal dosing recipe.
| Fluid or job | Main selection question | Go deeper |
|---|---|---|
| Oil-based or synthetic-based drilling mud | Will the organoclay disperse in the chosen base oil and develop the required yield point and gel? | Organoclay for OBM |
| Water-based drilling fluid | Is a water-dispersible grade appropriate for the brine, inhibitor and polymer package? | Water-based drilling |
| HPHT oil-based mud | What changes after aging at the actual design conditions? | HPHT drilling fluids |
| Temporary oil-based spotting pill | Can the pill be pumped, placed and held without unacceptable settling? | Spotting fluids |
| Oil-based workover or completion fluid | Is a solids-bearing oil system actually permitted for the reservoir and equipment? | Completion and workover fluids |
| Excess filtrate in OBM | Is filtration affected by the whole mud formulation, and what does an organoclay change in a controlled comparison? | Fluid loss control |
An organophilic grade can form a shear-sensitive particle network in a compatible oil phase. Engineers assess its contribution to low-shear structure, cuttings and weighting-material suspension, and recovery after circulation stops. The result depends on the base oil, emulsion package, solids, addition order and available shear. See how organoclay works for the mechanism and viscosity control for the general performance problem. The required grade and dose must come from the actual mud formulation.
Begin with CP-982 as a published conventional OBM candidate, CP-992 for published synthetic/low-aromatic oil compatibility, or CP-31 when a self-activating route is required. These are screening paths, not interchangeable specifications. Use the solvent-based organoclay range and Product Finder to narrow the choice.
| Record before selection | Why it matters | Verification |
|---|---|---|
| Continuous phase and base-oil identity | Governs wetting and activation | Disperse candidates in the actual fluid |
| Oil/water ratio, emulsifier and wetting agents | Can change emulsion and clay response | Compare final-formulation rheology and electrical stability |
| Solids and target density | Affect plastic viscosity and sag | Record density, low-shear readings and static/dynamic settling |
| Design temperature and static time | Can change gel and suspension | Age at the planned conditions, then retest |
| Filtration target | Depends on the whole filter-cake system | Run the applicable filtration test |
For an oil-based candidate, wet and disperse the grade in the selected base oil using the grade-specific TDS procedure, then build the emulsion and add weighting material in a controlled laboratory sequence. Compare the actual plant or rig shear with the lab setup. Do not assume one activator or one dose works across all grades. For water-based systems, follow their separate product instructions.
Do not add an oil-dispersible organoclay to a filtered, solids-free completion brine or a water-based mud merely because it is called a drilling fluid. Do not adopt a candidate when reservoir compatibility, filtration, clean-up or equipment tests fail. Weak gel, excessive viscosity and sag should be diagnosed from the whole formulation before increasing the clay dose.
Is this the page for an OBM viscosifier specification? No. Use the dedicated OBM application page and the grade TDS for formulation screening.
Are oil-based and water-based grades interchangeable? No. Select by continuous phase and verify dispersion in the actual system.
Which grade should I request first? Provide the base oil, density and target rheology; CP-982 and CP-992 are published OBM candidates with different screening emphases.
Does organoclay alone control fluid loss? Do not assume so. Compare filtration in matched formulations and see the fluid loss guide.
Can I use an OBM result for HPHT design? Only after aging and testing at the intended conditions; see the HPHT page.
What documents can I request? Ask for the current TDS, SDS, lot COA, sample availability and a recommended comparison test plan.
Send your fluid brief and request a grade recommendation. Include the base oil, oil/water ratio, density, target test conditions and destination market.
By CP Organoclay · Updated 24 September 2026. For grade-specific technical review, contact the Camp-Shinning Application Technology Team with your complete fluid formulation and test conditions.
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